
Transform your holiday leftovers into a comforting, hearty pie featuring a creamy turkey and sausage filling topped with crispy crumbled roast potatoes. It's the ultimate zero-waste meal that tastes even better than the original feast.
Heat the oil and a knob of butter in a large, shallow ovenproof casserole dish (ensure it fits in your air fryer if using one). Add the sliced onion and sauté over medium heat for 10 minutes until very soft and translucent.
If using raw sausages, push the onions to one side of the dish and brown the sausages thoroughly on all sides. If you are using already cooked leftover sausages, you can skip this step.
Remove the sausages from the dish and set aside to cool slightly. Stir the mustard powder, flour, and crumbled stock cube into the remaining oil and butter for 1-2 minutes to create a roux. Pour in the white wine and simmer for 1 minute, scraping the bottom of the dish to release any browned bits.
Gradually whisk in the chicken stock (or leftover gravy) to create a smooth sauce. Season with black pepper and simmer for 5 minutes until thickened. Meanwhile, preheat your oven to 200°C (180°C fan/Gas 6) or set your air fryer to 170°C.
Cut the sausages and stuffing balls into bite-sized chunks. Fold them into the sauce along with the shredded turkey, wholegrain mustard, crème fraîche, and chopped parsley. Once the mixture is bubbling, remove from the heat.
Roughly crumble the leftover roast potatoes by hand over the top of the filling, ensuring a mix of large and small chunks for a textured crust.
For Air Fryer cooking: Cover the dish with foil and cook for 15 minutes until the filling is bubbling. Remove the foil, scatter with grated cheddar, and cook for another 5-10 minutes until the cheese is melted and golden.
For Oven cooking: Scatter the grated cheese over the potatoes and bake for 40 minutes until the potatoes are extra crisp and the filling is bubbling around the edges.
For an even richer flavor, replace half the chicken stock with leftover gravy. If you don't have enough roast potatoes, you can supplement the topping with frozen hash browns or even a layer of mashed potatoes. This recipe works perfectly with leftover roast chicken as well.





